PDF malware analysis — malicious · 33c0588acd2fe7a5

MALICIOUS

PDF

4.2 KB

MD5: ebb4b01b1c5467b6923f238ec28b0b32 SHA-1: 31a8988b6f35f717d3b70876d987d2b8b7b20e84 SHA-256: 33c0588acd2fe7a594cc847587c433a229546e159077e692ed90fa9c95ba622c

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment

This PDF document is flagged as malicious by an ML classifier with high confidence. Static analysis identified an embedded file and an XFA form, and critically, detected the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. This indicates the document is designed to be opened by a vulnerable PDF reader to trigger an exploit, likely for further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `907a8e97eb8fb9e64df5ff42bceb21f009f59ab7d1c963faaad1e69411191199`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12971 bytes

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